Windows 7 'FIRST ever' Linux, Mac OS X-only password sniffing Trojan spotted !

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Security researchers have discovered a potential dangerous Linux and Mac OS X cross-platform trojan.
Once installed on a compromised machine, Wirenet-1 opens a backdoor to a remote command server, and logs key presses to capture passwords and sensitive information typed by victims.
'FIRST ever' Linux, Mac OS X-only password sniffing Trojan spotted ? The Register